xref: /aosp_15_r20/external/llvm/test/Transforms/InstCombine/memcpy.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -S | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker
3*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i32(i8* nocapture, i8* nocapture, i32, i32, i1) nounwind
4*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) nounwind
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Workerdefine void @test1(i8* %a) {
7*9880d681SAndroid Build Coastguard Worker        tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 false)
8*9880d681SAndroid Build Coastguard Worker        ret void
9*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define void @test1(
10*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: ret void
11*9880d681SAndroid Build Coastguard Worker}
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker
14*9880d681SAndroid Build Coastguard Worker; PR8267
15*9880d681SAndroid Build Coastguard Workerdefine void @test2(i8* %a) {
16*9880d681SAndroid Build Coastguard Worker        tail call void @llvm.memcpy.p0i8.p0i8.i32(i8* %a, i8* %a, i32 100, i32 1, i1 true)
17*9880d681SAndroid Build Coastguard Worker        ret void
18*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define void @test2(
19*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call void @llvm.memcpy
20*9880d681SAndroid Build Coastguard Worker}
21*9880d681SAndroid Build Coastguard Worker
22*9880d681SAndroid Build Coastguard Workerdefine void @test3(i8* %d, i8* %s) {
23*9880d681SAndroid Build Coastguard Worker        tail call void @llvm.memcpy.p0i8.p0i8.i64(i8* %d, i8* %s, i64 17179869184, i32 4, i1 false)
24*9880d681SAndroid Build Coastguard Worker        ret void
25*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: define void @test3(
26*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: call void @llvm.memcpy
27*9880d681SAndroid Build Coastguard Worker}
28